Card punching machine



12 Sheets-Sheet 1 April 3 1945- R. E. PAGE Erm.

CARD PUNCHING MACHINE Filed DSG. 29, 1943 April 3, 1945.

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CARD PUNGHING MACHINE Filed Dec. A29. 1943 12 Sheets-Sheet I 1.15 BY .5. Amm

April 3, 1945. v R, E PAGE ETAL 2,372.909

CARD PUNCHING MACHINE Filed nec. 29, 194s 12 sheets-sheet s l l I\\\\\\\\\\\ \\\\\\\\\l 'l-llllll ATTORNEY April 3, 1945. R. E. PAGE Erm.

CARD PUNCHING MACHINE 12 Sheets-Shee; 4

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CARD'PUNCHING MCHINE 12 sheets-Sheet 6 Filed Dec. 29, 1943 1 VE ons J. /J ,//f

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CARD PUNCHING MACHINE 12 Sheets-Sheet 7 Filed Dec. 29, 19434 i www BY ATTORNEY April 3, 1945. R. E. PAGE Erm.

C'ARD PUNCHING MACHINE 12 sheets-sheet 8A Filed Deo. 29, 1943 BY A TTORAIE Y April 3, l945- R. E. PAGE ETAL. 2,372,909

l CARD'PUNCHING MACHINE Filed Deo.. 29, v1943 '12 sheets-sheet 9 .mm .mi

A IWORS BY Y ATTORNEY @glycans ATTORNEY R. E. PAGE ET AL Filed Dec. 29, 1943 CARD PUNCHING MACHINE April 3, 1945. R E ,PAGE ErAL 2,372,909

CARD PUNCHING MACHINE Filed Dec. 29, 1943 12 sheets-sheet 11 m. .NSM

l igwym' BY y U- R. E. PAGE ETAL GARD PUNCHING MACHINE Filed Dec. 29, 1943 12l Sheets-Sheet 12 INR ----l Il. lllll llx -I ldn llll Qu -I |11 ms 1| Nac llll l ik lllll 9%.

ORS

ATTORNEY lllll llxkbv alienati am'. s, i945 CARD PUNCBING MACHINE Ralph E. Page, West Orange, and Horace S.

Beattie, East Orange, N. J., assigno'rs to International Business Machines Corporation, New York, N. Y., a corporation of New York Application Becember 29, 1943, Serial No. 516,048

37 Claims. (Cl. 164-115) This invention relates to punching machines vand more particularly to the card controlled type ally speaking, one or more detail cards for each which provides for selective punching of data on one card which is taken or transferred from an other card. The object of the invention is to provide an improved' arrangement which provides for the analysis of master and detail cards and the transfer of data from themaster card to the detail card whenever a particular relationship is determined,

and preferably when equality in classication designation is located between a, master card and a detail card.

A still further object of the invention is to proyvide for the selective feeding of either master or detail cards when the relative numerical value of one is lower than the other until a pair of cards is v analyzed which is found to be numerically equal in classication designation.

Another object of the invention is to initiate the operation of the punching mechanism and the feeding of a detail card past the punches so that by setting the punch selectors under control of the master card as the ylatter is analyzed, punching of the detail card will be effected as the latter is moved past the punches.

Another object of the present invention is to provide a machine of the .class described with comparing mechanism which is capable of determining not only equality in numerical value but which is capable of detecting whether a master or detail card is lower in numerical value and, upon the detection of such inequality, causing the feeding of cards containing a. representation of the lower numerical value until equality is again reached, if such condition can be obtained.

A still further object of the invention is to provide a maintained digit setup of the compared numerical value of either the master or detail card until the feeding of the related card from a. magazine or hopper is initiated. 'Ihis setup is retained for the purpose of comparison with the numerical values of the'cardswhich are found to be lower in-numerical value and which are being analyzed as they are fed from the o'ther magazine.

A still further object of the invention is to provide the punching of the first detail card under control of the master card, which is found to be numerically equalbut 'for causing the punching of each following equal detail card under control of the preceding detail cardwhich'has received the. transferred punched data. :i e

'The' present invention vis particularly useful inv card controlledy accounting systems `involving ,the use of master and detail cards.l There is,'. genermaster card but due to the absence. of current accounts or for other reasons, there may be some detail cards without accompanying master cards and vice versa. In passing the stack of master and detail cards through a sorting machine of a conventional design, lthe related stack of master and detail cards are preferably sorted in ascending numerical sequence and in such relationship the master and detail cards are placed in the supply magazines of the present machine.

To make the operation of the present machine somewhat clearer, it will be assumed thatthe cards are located in the respective hoppers in the following numerical order:

Master cards Detail cards l5 12 16 13 11 14 2l l5 22 l5 z; 15A 24 15 24 1n passing the mst master card lr and the de tail card I2 through the machine, inequalityis determined by the comparing mechanism and as a result of the comparison the detail card is found to be lower in numerical value than the first analyzed mastercard, .and successive feeding of the .detail cards continues to pass the detail cards I2,

I3, I4 through the machine until detail card num.- bered i5 is analyzed. In the absence of'feeding of the master cards the numerical value .l5 derived from-the master card numbered I5 is retained set up on the comparing mechanism and being compared concurrently with the detail card numbered I 5 equalityis located. The mode of operation of the machine then changes and punchingis effected fromthe first detail card undercontrol of the master card as the'latter is now being fed past by its related analyzing. brushes. At the same time the detail card passes by the punches to receive-,data .transposed from the caster card. With-this digit `setup of themaster card still retained there'will be a compari-A son with ,thek three successively fed detail cardsdigit set up for'the master card I5 and this inequality determines that the detail card 24 is greater in numerical value than the master card I or, in other words, the'master card I5 is numerically less than the detail card 24. vThe master card now being on the low side therewill be a successive feeding of the master cards I5,v I6,v I1, 2l, 22, 23 until the master card 24 is analyzed and compared with the maintained digit set up for the detail card 24. Equality is then determined and i .there is then a. transference of numerical data on the master card to the detail card.

The above example brings in the various modes of operation of the machine effected in accordance with the relative numerical values of the master and detail cards and shows the manner in which the desiredresults are brought about.

Of course, the terms master and detail are merely illustrative and are not to be considered as restrictive in the particular type of card used to control the machine. Ihe present invention may find application in other card controlled accounting systems where the same general results are desired and the mechanisms may be varied in one or more ways to secure equivalent results.

Other objects of the invention will be pointed out in the following description and claims and illustrated in the accompanying drawings, which disclose, by way of example,- the principle of the invention and the best mode, which has been contemplated, of applying that principle.

In said drawings:

Figs. 1a and lb when assembled in the order named show a side elevation of the machine.

Figs. 2a and 2b when assembled in the order named comprise a longitudinal sectional view of the machine.

gear 2B which meshes with a larger gear 21 to which-is attached a smaller gear 28, both being secured to a lshaft 29. 'I'he smaller gear 28 meshes with a larger driving gear which is loosely pivoted on a detail card feed vand punch drive shaft 3l and attached to the gear 30 is a gear 32 (see Fig. 1a)

Gear connections are provided between the constantly running drive shafts and a clutchv mechanism for feeding master cards from hop' per M and another clutch for feeding detail cards from the hopper D, so that cards may be fed in synchronism from both hoppers when cards are to be fed in pairs, or from the hoppers M or D when a single card is to be fedl at a time.

The gear 32 (Fig. 1a) meshes with a larger gear 33 pivoted on a shaft 34. 'I'he constantly running gear 33 in turn meshes with a gear 35 (see Fig. 1b) loosely pivoted on a shaft 36. Gear 35 meshes with a constantly running clutch driving gear 31 loose on shaft 38. The gear 31 through Figs. 3a and 3b when assembled in the order named show a plan view of the machine.

Fig. 4 is a sectional view showing a portion of the driving mechanism including the Geneva step motion gear.

Fig. 5 is a diagrammatic view showing the particular card feeding mechanism associated with each of the selectively engaged clutches and the manner in which the mode of operation of the .1.; 1e controlled from the results of the comparing mechanism.

Figs. 6a., 6b, 6c and 6d when assembled in the order named show the electrical wiring connections for the machine.

Fig. '1 is a timing diagram showing the timing of the cam operated contacts.

idler gear 4| drives a gear 39 attached to a shaft 40.l Thus, shaft 40 is continuously rotated and it is used for carrying cams which operate cam contacts designated by CRI-CRIS, to be menrtioned hereafter.

Attached to the gear 31 is a clutch disk 43 (Fig.

lb) provided with a clutch notch 44. Cooperating with the clutch notch 44 is a clutch pawl 45 lease the clutch pawl 45 which thereupon moves The present improvements are preferably in.-

Where structural changes and operations are made, a detail description is given herein in order to understand the incorporation of the .present improvements in the patented machine.

To obtain further details of construction and operation of the illustrative. machine, reference may be had to the aforementioned patent.-

The powerfor operating the machine is obtained from a motor M (Fig. 1a) which is mounted above the base 20. of the machine, which base carries a pair of mainside frames 2| and 22. (See Figs. Scand 31?.)

to clutch engaging position and connects the driving gear 31 with the drive shaft 38 for feeding the master cards from hopper M. The above describes a well known form of one-revolution clutch, the purpose of which is to effect a single revolution of the drive shaft -38 to perform a number of functions.

The shaft 38 is provided with an eccentric 52a (Fig. 2a) for operating card feed picker slides 53. Encircling the eccentric is a strap 54 which receives a reciprocating motion for each rotation of the drive shaft 38. The strap 54 is formed with an ear pivotally attached to an arm 55 attaqhed to a shaft 56 secured to which is a pair of gear sectors 51. The sectorsmesh with teeth 'formed at the bottom of picker slides 53 and the latter carry a picker knife 58 adapted to engage the bottom master card in the hopper- M and feed the same'to the rst set of feeding'rollers 59-50 which are concurrently rotated when the 1 Rl clutch is engaged. f y

It is apparent from the described clutch connections that when the clutch control magnetRl is energized the picker knife 58 is moved to the right, bringing the bottom mastercard in the hopper M over into cooperation with the feeding lrollers 59-50. Such feeding action for the hopper or magazine M ensues for each engagement of the RI-clutch.

The feeding rollers 9' 60` are driven by a gear 6| (Fig. 1b) attached to shaft 30 and which gear as'zaaoo ins-4me, Isl- |32 associated with the punching 6| is in mesh with a gear 02 on the roller 59, A

smaller gear 63 on roller 59 cooperates witha similar gear 6I- on roller 60 so that both rollers are turned simultaneously but oppositely. The rollers extendacross the machine between the side frames and when the rollers turnthey draw a master card from the hopper or magazine M and feed itto the right (Fig. 2a) between a contact roller 262 and analyzing brushes l5 and besecured to a Ashaft 52 which shaft carries the cams for operating cam contacts R2, R3, R0 and R5, whenever the R'I clutch is'engaged.

The P clutch mechanism for feeding detail cards .from the D hopper and concurrently effecting punching is operated when clutchA connec-V tions are established between the shaft 3| (Figs.

mechanism shown in '2b' for'feeding detail cards from thehopper D. l 1

A roller |01 (Pl-g. 4) extending laterally from. the gear26 forms a means for driving a Geneva step motion gear |09 with an intermittent movement. y

The notched Geneva gear wheel |09 turns on a .short stud'I |0 adapted to rotate in frame 2| but is locked in each position bythe cooperation of. la 'concentric portion I atv the end of each radial I extension with a 11ub;| I2 on shaft 25. The roller m1 moves 'idly furthe greater part of the.- arc about shaft in a counterclockwise direction (Fig. 4) until it; engages in one of the slots I I3 in the Geneva gear wheel |09. The gear wheel is Y '||.2. The depression is presented only when the 1a and 4) and the constantly rotating gear 30.

Attached to gearis a clutch disk 69 (Fig. 1a) loose on the shaft 3|. Adjacent the clutch disk is an arm 10 secured -to shaft 3| and carrying a durch pawl 1 1 pivoted thereon. c 'Ine pawl nes e.V

clutch Aextension adapted to lit into the clutch notch 12'of disk .69 and is urged Vto this position by a spring 13.A However, the pawl is normally held disengaged by alatch 10 which engages an extending arm on the pawl 1 I. When the clutch magnet P is energized, the amature 14 thereof is attracted. Clutch pawl 'II is now releasedto engage the notch in the clutch disk |59,l thereby" connectingshaft 3| to the driving gear 3.9. By such one-revolution clutch mechanism, shaft 3| is given a complete rotation.- When shaft 3| is rotated, three driving devices carried thereon are made effective to actuate various card feeding means. A pair of complementary cams 1'8-'11 secured to shaft 3| (Fig. 4) serves to drive the card'picker mechanism. A gear 18 (Figs. 1a and 3b) Asecured to shaft-3| drives the feeding rollers associated with the hopper D and the P cam contact cams. Another set of complementary cams 'Y 19--80 (Fig. 4) secured to shaft 3| acts Yto release a clutch connection in the Geneva gear drive.

A two-arm lever 8| (Fig. 4) on a rock shaft 02 carries a pair of rollers cooperating with the re- Vlated-cams 16-11. Also attached to the shaft 02 are sector arms 03 (s ee Fig. 2b) having gear teeth meshing with gear teeth carried by slides on which are mounted picker slides 04. A knife edge 05 attached to the slides 0I is adapted to engage the bottomv mastercard inhopper D and .move the .is split atsone side where then movedwith a gradually accelerated and gradually retarded motion which is stopped as the roller |01 movesout of-the slot witliwhich it engaged. The gear is released for each step of f movement by depression l0 in the side of the hub roller |01 is in position to drive the gear.

As in the patented machineclutch connection feeding may be effected when detail cards are to be fed from hopper D and are to be punched. In

4 it willbe` seen that -a'notched disk ||5 is loose on the stud ||0. which carries the Geneva wheel |09. Adjacent the disk is a plate I |6 which it isclamped to the stud ||0 byascrew |'|1.

The' plate IIB is adjustably positioned on the stud II'0 by a pair of set Vscrews |I8 which are threaded inthe plate and extend in cooperation' with a tongue ||.9 cut in the stud shaft H0. A clutch pawl |20 is pivoted at |2I on the plate IIB. The pawl is spring-urged to bring the clutch extension |22 thereof into cooperation with the clutch notch of the clutch disk ||5. An extending arm |23 on the pawl |2 0 cooperates with a roller- |24 on the end of a leverv |25 pivoted on a Y tomake a clutch connection withv the disk ||5 ,V

that when the P clutch control magnet is energized and shart 3| is driven, thecams 19 and 80 will rock the' lever |25, permitng clutch pawl |20 thereby establishing a driving connection between the Geneva gear wheel |09 and a gear |28 Aattached to disk ||5. The gear |23 (Figs. laand 4) meshs with gears |29 a.nd |30 onfeeding roller;

|03 and Ill, respectively see Fig. 2b). Anidler A gear |30' between the gear |30 and anothengear'- |33 forms the driving connectionto the feed roller |05. Another idler .gear 230 between the gear I 33 y and gear 235 formsa driving connection `for the card to the rightwhen the picker slide 83 is reci p A rocated bythe cams 16-11 on shaft 3|.

Gear n (Fig. 1a), wh1ch, itwi11 bc recalled, is'. driven a complete revolution'when the P clutch is engaged, meshes with a gear 06 mounted on the same stud 30 with gear 33. Gear 00 meshes with a gear 01 (Hg. 1b) loose oii'theshaft 30. meshes with an idler gear 00. (shown only in"Fig.

feed roller |3|. A smallgear |35 on roller|03 cooperates `with a similar gear |35 on roller |00.A

A-similar gear connection is' made between'gears Gear-.31"

3a), loose on shaft 30, the latter gear through 70 idler gears 89 and 90 drivingacamcarryingshaft 9|. Shaft 9| carriesthe cams for operating the Pl-Pllcotacts.Y

There are connections from the driving war 20. to the series of feeding rollers |03-'|00, Ill-A02,

|30, |33, andfg235L-of rollers |0|,. |05, and |3|, respectively and between gears 39,' -I 00, and 200 otrollers |02, |06, and'l32.

Anidlergear- III connects gear|30 to 'gear I42. on the contact roller. 02|. vAnother idler gear |03, meshes' with thegear of the feed roller |05. and drives a gear |00 mathe-contact roller 221 associated with the detail card brushes I. A summarizing the aboveconstruction, a driving connection is effected when the P clutch control magnet (Fig. 1a) is energized between the drive gear'26. and the pairs of feeding rollers shown 1n Fig. 2b associated with the punching mechanism. The first cycle of operationv effects the feeding of a master card fro/m hopper M, and

a detail card from the D hopper to -be analyzed by the analyzing brushes I1, and as a result of such analysis and comparison with the master card which is concurrentlyanalyzed by brushes It,4 the detail Card wi11l be yfed step by step beneath the punches |8 and certain data on the master card will be reproduced on the detail card.

Separate drive for feed rollers 65-66, 88, 197, for analyzing master card" when R2 clutch is engaged Whenever the detail card corresponds-to the master card, feeding rollers 65, 66 aredriven to feed the master card past brushes I6 and the data analyzed- .thereby controls the punching .mechanism to transpose this data to the detailV card. This operation is controlledv by the R2 clutch magnet.

To this end gear 33 drives a gear 92 (Fig. 1b) f magnet R2 is attracted. This is-a. well-.known form of one-revolution clutch mechanism and when engaged drives shaft 94. Shaft 94'also carries a gear 98 (Fig..3a) which meshes with a gear 99 attached to feed roller 65 and which also carries a smaller gear win mesh with a similar gear 1204 on the associated roller 66 (see Fig. 2a). An idler gear 202 (Fig. 1b) meshes with gear |00 and drives the contact roller 28| through a gear 203 mounted thereon.

Gear 98 drivesa gear 204 attachedto feed roller shaft 88 and the gear 204 has secured to it a gear 205,meshing with a gear 206 secured to the lower feed roller shaft |91.

Punching mechanism The construction of the punching mechanism shown in the mid-center of Figi. 2b is precisely the same as that shown and described in `the patent to C. D. Lake, No. 2,032,805, dated March 3, 1936, to which reference may be had,l for de tails of construction and operation'. A general description of the operation of this punching mechanism will be given and in sufficient detail so that the present improvements will be better understood.

After leaving the detail card sensing station,

which'comprises brushes I1, the detail card is `fedbetween a stripper platel |66 and a die plate hopper I3.

The selective operation'of the punches I8 will present machine a constantlyrotating shaft |53 is provided .A I by an arm |13, the latter havmg a pivotal connection to the'y punch operating bail-|1.1. Inzithe sensing and the pairs of feed be explainedyvithl reference to Fig. 2b. In the with an eccentric which is encircled- |0I-I02, the ,shaft |53 carries the aforemen-- tioned cam disk |12. To effect the rotation of the shaft |53 the gear connections shown in Fig. la are'provided, wherein it will be seen that the gear |34 has rotatable therewith a pinion |40 meshing with anidler gear |49 which meshes with a gear |50 which, through the idler gear' ISI, drives a gear |52 secured to the shaft |53, which shaft is shown in Fig. 2b as ,carrying the eccentric cam disk |12. Hence.I when the P clutch control magnet (Fig. la) isa energized, the shaft |53 will be given successive rotations during the punching cycle, there being one revolution of theshaft |53 for each index point position anyzed. i

It; will also be understood that in the patented machine as in the present machine the cards are fed in a direction parallel to the card col- -umns so that the cards are presented beneath the punches I8 (Fig. 2b) as the index points 9, 8,' 1-I are analyzed inthis named order. When a perforation is encountered on the master card 1by|brushes I6 which is to be duplicated an the detail card', the punch magnet PM' (Fig. 2b) is energized and this will draw a call-wire |81, thereby moving the punch interposer- |85 over the punch bail operating plate |11. Inter-- poser |86 is pivoted on the related punch I8 and whenl the bail |11 is depressed it will, through' the interposer |86, depress' the punch I8 and perforate the card in the desired index point position in the column associated with the punch I8. There is, ofl course, a punch control magnet PM .for each card column which isto be punched and during the punching cyclecthe magnetsPM are energized at differential times and therefore effect the depression of the punches I8 at the `corresponding differential times ,to perforate a. plurality of card columns to "represent the desired data.

It is thought that the above general description of the operation of -tlie punching machine will-suffice to give an understanding of the operation of the punching mechanism. 'For further details of construction and operation, reference may -be had to the Lake Patent No. 2,032,805.

General operations of machine rlefore the detailedV operation ofthe machine will be given in connection with the wiring diagram; an understanding of the general operation of the `machine will be found to behelpful. This cally shown, wherein it will be seen that the 428|. The P clutch on the other hand, when general operation will now be given, particularly in connection with the diagrammatic view of Fig,5.` l

The various feeding-devices encompassed by the threediiferent vclutches are diagrammatiengagement of theRl clutch causes the opera tion of the picker knife 58, the feeding rollers 59 and A60 and contact roller v262. The R2 clutch when engaged causes operation of the feeding engaged, causes the operation of the picker knife 85 and the concomitant rotation of thefour sets of feeding rollers |03---I04l lili-|02; I05|00\ M and D hoppers, respectively and the cards are v inserted with the printed face down and with the leading Vedge of the card adjacent to4 the nine lindex point positions. vThe ,start-key is vthen depressed andat` the beginning of the operpaied with the numerical value of vasiatica l ation of the machine the RI, R2 and P clutches will-bev concurrently engaged and by two feeding cycles thebottom master and detail cards will will be set up, and. by 'the particular contacts closed by-such relays, a comparison of the data can be made by an electrical circuit to deter'- mine' whether,the data is equal or if they disagree by the numerical data on one card being lower than the other. From the result of the rst comparison, feeding of either the'master or detail cards will be under control of the electrical comparing circuits and the RI and the P clutches will no longer b 'engaged concurrently. `Thus, if at the end of the second cycle'the 0 comparing unit determines-that the ynumerical data. of the master card was lower than the numerical data of the first detail card, both clutches RI. 'andv R2 will be concurrently eny gaged so that during the third cycle of oper-JM ation the second master card is analyzed by the brushes I5, its data set upj on the` relays andl compared with thel retained setting of the relays from the first detail card., If, in the third cyclathe comparing unit determines that the first detail card is lower in numerical value than the second master card, the P clutch is energized in the fourth cycle to feed the-second detail card from the related hopper which isv` analyzed and its numerical data set up on therespective relays. AIf, at the end of the third cycle, it is found that the second detail and second master card agree in numerical value, both` the P clutch and the R21clutches willbe engaged on the nextv or fourth cycle. `During this fourth cycle, the 40 analyzing brushes I6 analyze other. data on the master card and by controlling the PM punch magnets (Fig. 2b) the punches I8 are operated to .reproduce the data on a ld 'of the detail card. summarizing, upon an .agreement "in numerical value the data from' the mastercard is transferred to the detail card. `A detail card A is fed from the detail hopper D during this punching cycle because the P clutch operates thef picker 85. The numerical value of the newly fed detail card is set up on the relays and commaster cardwhich has been retained on the respective relays. If this numerical value agrees,

` the P clutch is engaged and theQsixth cycle ensues durihg which time the numerical data from the master' card .transferred to cris reproduced on the detail card. Ofpco' rse, duringthis cycle,

h f ta rd is analvzed b thebrushes `t e ourth de n ca a y -30 the position shown,.through R9. relay to line 20| IL and its numerical value is compared with the n rlay transfers the R3`I contacts, such being the second Operation ofjmachne inconnection with wirbt` diam-am Prior to the operation/ of the machine the operator inserts detail cards in the magazine D (Fig. 2b) 4anii'niaster cards in the M magazine (Fig. 2a), whereupon the cards in each stock operate the respective customary card levers MHL,and DHL to close `the related contacts MHCl and DHC. From Fig. 6a it will be .seen that a circuit will be closed from the line `200 through the related card lever contacts MHC andl DHC to energize the R6 and R3 relays.

R6-relay transfers its RS-I contacts and the R3 e position of Athe "contacts prior to the pression of the start key ST.

The operator then dpresses the start key and the circuit is closed from the line v200 through the stop key contacts 205; through R--I and R'I-I through RG-'I andR3-I 4contacts both transfsrred, thence-through the start key contacts 206, through the Rl relay to the une 20|. with the start key maintained depressed by the operator the RI relay willV be retained energizedl through the circuit just described and when RI relay is energized the RI-I contacts are closed so as to close a circuit from the line 200, through -A RI-I contacts, through the motor relay MR' to constantly rotating cams designated CR now rotatefro'm their position of rest. It is pointed out that in the previous stoppage of the machine the motor M coasts to a mid-cycle position and in its positionof rest the CRI-5 contacts (Fig. 7) are f now closed. Hence, when the RI relay-'is energized the circuitfis continued from the RI-I contacts through the CRI5 contacts to the R2 relay "to line 20 I 'I'he R2 relay closes its h holding contucts und the hold circuitis maintained through lthe CRS contacts;v back to line 200. -Hereafter holding' contacts thereof. The CR5 contacts open contacts now in the position shown, thence line 20|. The MR relay closes the MRI motor re- 1 Y' lay contacts t0 start the motor M in operation. By initiating the operation of the motor M the at the end of the cycleto deenergize the R2 relay Y but in starting up the machine the start key is .5p usually maintainedy depressed, so that evenv Vthough the CR5 contacts open at the end of the r Y cycle-the RI relay will be maintained energized to causeV the nextcycleof operation. The succeeding; cycle of operation is a card feeding cycle in 55 whic'lrcards are fed both from the M and D magazines 4t the end or th cycle initiated by de-` v:pression of the start key, camcontacts CRS l close, closing a circuit from line zoo, through ons contacts, thence through R'I- 3 contacts now` in numericaivalue f the master 'card which is and also'froni the VCRI contacts, through RII-43 still set up in the re1ay`s.' A` punch cycle then ensues which eiects the transference of numeri- 'contacts now in the position shown, through the R8 relay 'to line 20L R9 relay closes the'R9-I cal data fr the master card to the detail card^`-, Acentacts (Fig.- 6C) and R3 relyflOSefS Rs-lnand the' 'abQoBve operation is repeated as longas 65 tacts4 and With ,Rlrlay maintalnedv energized to detail cards agree in 'numerical master card. y Whenever a mastercard isl analyzed by the Vbrushes I1 which is no longer equal .but vis lower in numerical value than the detail card.. the RI and R2 clutcl'xes are engaged and successive feedinglof master cards 'will ensueuntil a master card arrives which is equal or greater in nuxneri-l cal value than the lastodetail card that has been analyzed by the brushes I1.

kvalue with the' hold, the R252 contacts closed, arcircuitis closed from line 200wh'en cam contacts "CRM close -at the end of the`cycle. f This circuit is from the linev zum4 through- CRlrcontacts, Rz-z contacts, Rs--l Pclutch control magnets energized the card feeding mechanisms will be operative and the picker s Il will feed the lowermost detail card from the detail magazine D and the picker 58 will feed the lowermost master card from the magazine M. Of course, the related feeding rollers will also rotate and during the first card feed cycle the detaiicard will be fed4 out of the magazine D suiilciently so that its leading edge is close to the analyzing brushes I1 and the master card will be fed so th t.

its leading edge will be-adiacent the analyzing brushes I5, both cards thenbeing inafposition for analysis during the second card feed cycle.

The second cardfeedcycle is eiiected by a lse'cj ond depression of the start key or by maintaining it depressed.

During the first card feed cycle certain card levers are actuated and consist of the RCLI 'card levez-.actuated by the master card to close the RCCI contacts and the PCLI card lever .actuated by the detail card to close the PCCI contacts. The RCSI card lever corresponds to the RCL2 card lever oi' Patent No. 2,032,805 vand the PCLI into operation to compare the numerical values of the first master and iii-st detail cards and such. comparing circuits will now be described.

Electrical .comparing mechanism The comparing mechanism herein shown for,

the purpose of determining whether the numerical value of the master and detail cards isequal or different is shown for three card columns and it willbe assumed that card columns 1, 2- and 3' ofthe-master card are compared with the correspondingly numbered card columns of .the detail cards. Of course, thenumberl of card columns ,that are compared may be increased or decreased,

depending upon the situation but the three colu'mns herein shown will explain the principles of operation.

code shown in Fig. 6c.

card lever herein corresponds to the DCL card le-` ,verof this patent. When the R5 contacts close. a circuit will be closed from line thro'ugh R5 the Plcontacts backto line 200. During. the second' card feed cycle the contacts shown in Fig. 2b l In order to reduce the number of relays of the electrical comparing mechanism the numerical values of both the master and detail cards are set up in relays vin combination accordingto the For each card column, four 'relays are utilized to represent the digit and'cbnsist of relays RI, R2, RI and R6 yfor eachcard column, for both the master and detail cards'. Therela'ys assoelated with the detail cardare designated by the letter .D whereas the relays associated with the `-master card are designated by.

f yThe analyzing brushes I5 analyze the numeri-v calv data of the master card and plug connections 2I3, 2H', -2I5 are made between the plug sockets 'of such card columns to master relays MIM2 and Fig. 6a and designated DCL are actuated by the card iedfrom the detail card magazine and the stick circuit for the RI relay is now maintained through the h contacts and the DCC c'ontacts, thence through RS-l and R6- -I ,now

transferred, thence through R1--I andrRL-I now transferred, stop key contacts 205, back to' line 22|. i

The R4 relay transfers the 12A-1 contacts, the

Rl--l contacts, and the.R1 relay transfers the R13 contacts. The impulse created by cam contactsfCRE will be directed at the end of the cycle to a test circuit line 201. The test circuit 231 is now associated with the comparing circuits for determining whether the compared data on the detail and'master-cards are equal or differ.

in numerical value.

During the second card.- feed cycle pressure on the start key can be relieved since the machine will continue by automatic cycles of operation as long as cards are fed, dueto the maintained en` ergization of the RI' relay by the circuit just de- During the second-card feed cycle the analyzing brushes I1 analyze the data on the first detail card fed and the analyzing brushes I 5 analyze the data on the field of the master,y card which is to be compared. Contrasting 'with the machine ting lines 2 I6.

and M3 (Fig. 6d) and such relays are energized 'at differential times in accordance with the perforations analyzed. The analyzing circuit. ex-

tends from the line'200 throughvthe cam conwtacts CR3, CRI, RI which are'closed during the time that the card holes are analyzed, and' thence through the' R1-,2- contacts which are also closed duringy the analysis of the `card perforations,

" 'thence through the contact roll 262, analyzing brushes I5, the related plug connections 2I3, 21| and 2I5 to thelassociated master relays MI, M2', and M3 to line 20L Each master relay will close the related 1, 2, 3V and 4, contacts, thereby connecting thef related digit setup magnets RSM,

R4M, R2M and RIM to the impulse transmit' The function of the master relay MI is to enable impulses singly or in combina# -tion transmitted by the lines 2I6 to be'directed to the digit setup'mgnets RI to R6 to thereby energize them in combination according to the code. To this end, constantly running cam contacts CRIDpCRII, CRI2 and CRIS will`direct impulses to `the lines 2li, For example, if the 9.

index point is analyzed it will be seen from the v. timing shown ,in Fig. 'I that at this time the shown in Patent No. 2,032,805, the detail-and master cards are placed in the respective hoppers with the printed faces downward but like the patented machine in such position in the hoppers that the v9 index points of the card are adjacent the leading edges. Hence, the index points are analyzed in the sequence 9, tf1-0, as indicated in Fig. 7. During the second card feeding CRIB, CRII Iand CRI! cam contacts close to thereby energize the RI, R2 and R8 relays. If

the 6 index point position. was perforated the CRI3 cam contacts will direct an impulse at this time only to the R6 digit setup magnet. In the same manner, according to the code shown in Fig. 6c, the RI, R2, Rg and Ri relays are set up in combination and this occurs for the three card columns of the master card. Each digit setup magnet lRI, R2, R4 and R6 when energized closes its holding contact h and the hold circuit for all of the master c ard digit setup relays of the threecblumns extends back by a line 2I1 through lthe R3 cam contacts back to line 200. Hence,

the digit 'setup relays which are energized under cyclethe electrical comparing mechanism comes 'Il control of the master card bythe brushes I5 are held energized through cam contact R3 driven by shaft s2 (Fiel 1b) leontroued by the Rl clutch. i

Thus, at the end .of any cycle, all of the digit setup relays for the master card will be held energized and will not be deenergized until the beginning of the cycle when RI clutch is again engaged and a new master card fed to the analyzing brushes I5.

From Fig. 6c it. will'be seen that a silr'iilar relay digit setup unit is provided for the detail cards which are analyzed by the brushes II. Plug conl0 nections 2N, 2II and 2I2 are made between the fplug sockets associated with card columns 1, 2

and 3 of the detail cardA to the master relays-DL'n D2 and D3. These are energized at differential timesaccording to the digits of the numerical closed during this time, to the contact roll IIIZI; the brushes I1, and thence through the respective plug connections ZIO, 2II and 2I2, to the D master pickup relays DI D2 and."D3, to line 2III. The master relay DI, for example, closes its I, 2,

3 and 4 relay contacts, thereby connecting the 2| impulse 'lines 2I6 to the digit setup relays RID,

RZD, R4D and RBD for the related card column.

Hence, these relays will be set up in combination according to the code shown in Fig..6c and master card tothe detail card. Operation of punching -ncchanism 'when numer eiect the transference. of numerical data on the 1 ical value of master and detail ,cards is alike To understand the operation of themachine upon sensing equality in numerical values-of the analyzed master card and detail cards, it will be assumed that the card columns thereof are both 1 perforated torep'resent |83. Referringto the code shown-in Fig. 6c, upon sensing the 1 perforaf tion, the BAD and RIM relays are concurrently energized and held energized. For the 8 digit, relays RM and RBD are concurrently energized as well as R2D and RZM relays. For column y1 the digit 3 is representedby the energized condition of thenRZD and RIM relays and the RID land RIM relays. vEach of the .aforesaid relays.

is held energized during the card feed cycle, in which theyare analyzed .and at the end of this cycle upon the'closure of the CRB cam contacts.

a fest impulse isdirected by the wire T-to the circuit network. Each ofthe aforesaid relays in the example assumed will transfer their respective l or 2 contacts in Fig. 6b and they will be held in such transferredposition when cam contacts CRS close. For the assumed example in the manner previously explained. It should the test circuit is from the line 200 through cam be noted, however, that when such digit setup relays RID, R2D, RAD and RSD are energized they will close their respective holding contacts h and the hold circuit will be extended back by a line 2I8 through a cam 7contact P3 back to line Il '2I8. The P3 cam contact is driven by shaft 9| when theP clutch is engaged and therefore the detail comparing relays RI, R2, R4 and R6 'which are energized will be held energized until the P clutch is again engaged whereupon cam contact 40 P3 will open at' the beginning of the next cycle when a detail card is fed to deenergize the relaysN preparatory for another digit setup for the next detail card. In 'the preceding description it was assumed that a master card was analyzed by the brushes I5 concurrently with the analysis of L' a detail cardv by the analyzing brushes I1, this being' eected .during thesecond card feedl cycle During this second card feed cycle the comparingelds on the master and detailcards-will l0 fm th. mon y wn be setup on theA detailv comparing relays RID, e pos 530 thence through RZD" RZD, RID and RGD and also on the master compan'ng relays RIM, RZM, RcM and Rsi/r endet the end of tbe cycle test circuits lwill be effective to testV the circuit network made by the associated Il RlDI contactsnow inthe position shown, through A RlMlcontactsvnw in the position shown, thence through R2DI contacts now-in theposition shown,

through R2MI contacts ncw in the position Y shown, thence. throughRIDI contacts now'trans ferred'and RiMIr now transferred,v thence by a wire 219 to thenetwcrk of calumn 2. ,The lcircuit then'extends by thewire 2|9 through RSDI contacts now transferred, REMI contacts now transferred, through R4DI, R4MI, both now in the position sho wn, thence through' R2DI and R2M I both new transferred; .thence through RIDI and/RIMZ, both now in the position shown column-1. The-circuit then extends through RSDI, -RGML` RIDE, R4M2, a1lof.wl: |ich Yare now R2MI, RIDIcnd RIMI contacts', all of whichare new ltransferred to wire -22| which extends as to wire 223, which extends th-test impulse to shown in Fig. 6a 'to the Rl--Z contacts, and

through such .closed contacts to the pickup windmg er the-Ru relay-to une zul. 'when the Rm o "Equal .relay isenergized it will close the h contacts and the stick circuit for the H or hold trical comparing network the RID or equal relay f In Subsequent operations of the machine the feeding of the detail and master cards will nowY be entirely under control of the comparing circuits^ o and the P and RI clutches will no. longer be engaged concurrently. Y In Ythe following description it willfbe assumed' that the numerical values of both the `detail and the master cards agree and as a. result of the elecl5 extends-,through such; contacts and the P2cam'contacts.

Rill-4 contactsV causes '.the energi'zaton of, the

Pand RZ clutches' will be engaged at the end of .(Fig. 6a) will be e'e'rgized means@ the energi the gicle lin which' the detail and master-cards zatioiz-ef thex P and the R2 clutch control magnets (Figi. 6c), whereuponby the R2 clutch .the master card will be' fedpastjthe analyzing 70 V-brushes I 6 and numerical data preferably o'n an-i.

other card ield of the master card willbe, analyzed to. control the `operaion`of the punches I 8 will befound equal and the detail card will be fed Referring-nowfto Pig; Scthe' closure of the P'clutcncontrolmagnet andthe closure of the I Ril-3 contacts'causesthe energzation of the -R2 clutch control magnet. Therefore, both the duringthelncxt cyrlepastthe' punches I8 and the card will h fed'past the analyzing brushesisfto energize the punch selecting mag- I scribed.

thedet'ail card' to be fed'past such punches the' master card to thedetail 'card consists of card Assuming that the datato se transferred from.

netsPM-by circuit. connections now to be decolumns other than those whichre compared with the detail card, plug connections 222 (Fig.

the detail comparing relays will again be set up to represent the numerical data of the following detail'card. At the end of the analyzing cycle,

plug connections 2,22 will be made to the master card analyzing brushes I6 for such card columns.

During the time lthat the master card passes the brushes I6 the impulse circuit will be transmitted from the. line '200, through PI contacts closed during the analyzing and punching cycle, thence through RCCZ cardlever contacts closed by card lever RCL2 (which correspond respectively to CHCL and lCHC of Patent No. 2,032,805), the 'contact roll 28|, brushes I6, the plug connections 222, thence through the RSI, RSZ and R83 contacts now in thepositionshown, through the plug connections 223 to the PM punch selecting magnets of the card columns which are to be punched on the detaileard. If similarly numbered card columns are to be punched then plug connections 223 will be made to the PM punch selecting magnets for columns l, 5 and 6. The common sideyof the punch selecting magnets PM extends through the RIZ-2 contacts to line RI2--2 contactsare'closed to complete the impulse circuits t the punch selecting magnets PM by the circuit arrangementA now to be described. l l

Referring to Fig. 6a, with R|0I contacts now closed, cam contacts PI2 close a circuit from'the energized 'during the punching operation.' ,It is at the early part of the cycl 1n which thepunching operation is effecte Hence, with the R|22 contacts (Fig.'6d) closed, the circuits .to the PM punch selecting magnets can be closed to the line 20 I.

Mode of operation for transferring data to detail cards follozqing the first equal detail card when they all agree with the master 'card -The above describes the operation of the ma- ,chine for transferring the data from the master pointed out that the PI2, cmfentacts are closed card to the rst d etail card found to be in agreement therewith. The mode of operation of the machine changes when following detail cards are found to agree with thev master card. During the time that the first detail card is passing the punches I8 concurrently with the passage of the master card by the -brushes I5, a following detail card is being fed past the analyzing brushes I1 and its numerical values in columns 1-'3' are compared with the digit setup of the master comparing relalys which are still retained ener- It will be recalled that the'holdlng circuit for the master comparing relays is back through 4wire 2I1 and cam contacts R3 and since cam contacts R3 are retained closed at .the end of the cyclel it will beseen that the setup on the master comparing relays is retained until the RI .Y clutch is agaiwengaged. (See Fig. 5.) However, in the the cam contacts CRB again transmit an impulse to the test circuit 20 1 and if the numerical data represented by the detail comparing relays which were set up during this cycle agrees with the data represented by the master control setup on the relaysfor the first master card, the RIlI relay will ag'ain be'energized by the circuit previously described. This results in the concurrent engagement of. the P clutch and the R2 clutch, the R2 clutch causing the feeding of the master card from brushes I6by the feeding rollers 88 and |81 (Fig. Zw) to be deposited in the master card storage hopper I2. However, the engagement of the P clutch causes the first detail card to be fed past the analyzing lbrushes I9 concurrently with thelpassage of the following detail card by the punches, I8, and by acircuit now tolbe de- `scribed the punchselecting magnets vPM are energized under control of the analyzing -brushes I9 in accordance withthe numerical data on the following detail card. v

At the end of the cycle in which .the electrical comparing mechanism determines that the numerical value of the following detail card agrees with the setup on the master comparing relays the RIU and the RIZ relays are energized by the circuit previously described so that when cam contacts CRB close (Fig. .6c), a circuit will be closed from the line 200, through cam contacts CR8, relay 'contacts RHI- 5, relay contacts Rlz-l, the Rs relay tor une 20|.

tacts P8, which latter retain the RS relay ener-v gized during the cycle of operation inwhich he The RS or selector relay coordinates the anal- V yzing brushes I9 (Fig. 6d) with the punch sesetup of the master comparing relays.

cycle 'in which punching is effected on the first l lecting magnetsPM and breaks the previous connection of the analyzing brushes I6 with the punch selecting magnets PM. When the RS relag is energized it will transfer its I, 2 and 3 contaots so that the analyzing circuit will be closed from the line 200 through cam contacts PI, thence through card lever contacts PCCZ closed by the card lever PCLL (corresponding to PCL and PC I, respectively, of Patent No. 2,032,805), the-nce to the contact roll 221, analyzing brushes I9, plug connections 223, thence through the no/w transferred contacts I, 2 and 34 of the RS rfi-day, thence by plug connections 223 to the punch selecting magnets PM, thence through relay contacts RIZ- 2 to the line 20|. card which follows the first detail card and which is found to agree with the master card is punched under control of the first detail card as it is analyzed by brushes I9. Of course, during the cycle of operation in which such punching is effectedI the following detail card is being analyzed by the brushes I1 and its digit setup on the detail comparing relays is compared with the digit Upon an agreement a repetition of the above described operation of the machine is effected and thus the punching unit shown in Fig. 2b will be repeatedly operated asv long as the successively fed detail cards agree in numerical value with the setup on the master comparing relays. This repetition in operation continues until a detail card is ana-y lyzed by the analyzing brushes |1 foundfto differ from the numerical value setup onjie `master Hence, the detail 

